Forum Discussion
Disk usage in Windows 10 often spikes to 100%, causing the system to lag
When I open Task Manager, disk usage often shows 100%, even though I’m not actually reading or writing a large number of files. This causes the system to become unusually sluggish, which is most noti...
Sometimes, it's not a software issue at all. A failing or faulty hard drive can cause exactly this problem—spiking to 100% usage with almost zero read/write activity, slowing your entire system to a crawl . One user had the same issue with a Kingston SSD, tried everything, and the only fix was replacing the drive .